Heating and stirring module for high-throughput x-ray diffraction automated pre-treatment device and control method thereof

Abstract

This invention discloses a heating and stirring module and its control method for an automated high-throughput X-ray diffraction pretreatment device. The key technical features include: an upper seat mounted above a base, with arrayed placement stations; a heating module housed within the upper seat for simultaneously heating the placement stations; several stirring modules housed within the base, corresponding to the placement stations; and a temperature control module connected to the heating modules for inputting and setting temperature control conditions or regulating the start and stop of the heating modules. This invention achieves heating and mechanical stirring of clay sample mixtures through the heating and stirring modules, replacing the inefficient and unstable manual stirring. Furthermore, the distributed drive control unit enables control of the stirring modules, adapting to the addition of new samples during the process and ensuring consistency in sample processing.

Description

Technical Field

[0001] This invention relates to clay sample testing technology, and more specifically, to a heating and stirring module of a high-throughput X-ray diffraction automated pretreatment device and its control method. Background Technology

[0002] While methods such as neutron diffraction, electron diffraction, infrared spectroscopy, and Mössbauer spectroscopy can be used to analyze the structure of matter, X-ray diffraction is the most effective and widely used method. Moreover, X-ray diffraction was the first method used by humankind to study the microscopic structure of matter. The applications of X-ray diffraction are extremely broad, and it has now permeated various engineering and technological sciences, including physics, chemistry, earth sciences, and materials science.

[0003] Among them, X-ray diffraction mineral qualitative / quantitative analysis technology is an extremely important and most frequently used research method for the quantitative analysis of mineral components in the three major rock types of sedimentary rocks, igneous rocks, and metamorphic rocks. It is of great significance for oil and gas exploration and development, reservoir evaluation, reservoir stimulation, well logging interpretation, diagenesis and sedimentary environment research.

[0004] According to the current standard SY / T5163-2018 "X-ray diffraction analysis method for clay minerals and common non-clay minerals in sedimentary rocks", X-ray diffraction technology can be used to perform quantitative analysis of mineral components and qualitative and quantitative analysis of clay minerals in rocks. The testing process mainly includes sample crushing, soaking, extraction, slide preparation and scanning.

[0005] According to current standards, when soaking clay samples, taking a batch of 100 samples as an example, it generally takes more than two days to soak them. Then, the clay samples are repeatedly wet-milled manually to achieve full suspension, which generally takes 3-5 days. After that, the clay samples are repeatedly washed, and the clay suspension in the beaker is extracted, which takes 3 days. According to statistics, it generally takes 8-10 days to soak and suspend the crushed clay samples to reach the sampling standard, and it requires long-term manual stirring and wet milling, which is labor-intensive and time-consuming.

[0006] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the present invention aims to provide a heating and stirring module and its control method for an automated pretreatment device for high-throughput X-ray diffraction.

[0008] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a heating and stirring module of a high-throughput X-ray diffraction automated pretreatment device, characterized in that it comprises:

[0009] Base;

[0010] The upper seat is installed above the base and has a placement station with an array distribution configuration;

[0011] The heating module is installed inside the upper seat and is used to simultaneously heat several placement stations;

[0012] Several mixing modules are set inside the base, corresponding to the placement positions;

[0013] The temperature control module is connected to the heating module and is used to input and set temperature control conditions or to control the start and stop of the heating module.

[0014] An independent switch detection module is set on each placement station to detect the status of the placement station and output a detection signal corresponding to a specific placement station.

[0015] The distributed drive control unit is connected in communication with the independent switch detection module to receive detection signals to drive or stop the stirring module at the corresponding placement position;

[0016] The independent switch detection module includes a placement detection unit and a temperature control detection unit. Both the placement detection unit and the temperature control detection unit are data-connected to the distributed drive control unit. The distributed drive unit is configured to: respond to the detection signal issued by the placement detection unit at the placement station, and independently start or stop the stirring module corresponding to the corresponding placement station.

[0017] Alternatively, it can respond to the detection signals emitted by both the placement detection unit and the temperature control detection unit at the placement station, and independently drive the stirring module corresponding to the respective placement station.

[0018] The present invention is further configured such that: the placement detection unit includes a sensor group for acquiring the placement status of the beaker in the placement station, the sensor group including any one of a pressure sensor, a photoelectric sensor or a micro switch, and the sensor group is connected to the stirring module of the corresponding placement station through a distributed drive control unit.

[0019] The present invention is further configured such that: the temperature control detection unit includes a temperature sensor disposed in the placement station, the temperature sensor is used to acquire the temperature of the corresponding placement station to output a temperature data signal, the temperature sensor is electrically connected to a comparator, the comparator is used to receive the temperature data signal and compare it with a set reference temperature, and outputs a temperature control switch signal when the temperature data signal is less than the reference temperature.

[0020] Specifically, when the temperature data signal is lower than the reference temperature, the heating module operates and the distributed drive control unit delays the control of the stirring module.

[0021] The present invention is further configured such that: when the temperature data signal is less than the reference temperature, the distributed drive control unit obtains the temperature data signal and compares it with the reference temperature to calculate the time for the delayed distributed drive control unit to start the stirring module.

[0022] The present invention is further configured such that: the distributed drive control unit includes a main controller and a slave control module, the slave control module is configured to correspond one-to-one with a plurality of placement stations, the slave control module is connected to an independent switch detection module and a stirring module, and is used to receive signals from the main controller and the independent switch detection module to start and stop the stirring module;

[0023] The main controller is communicatively connected to several slave control modules, and is used to send out mixing parameters for controlling the mixing modules in batches and to receive and monitor the status of several mixing modules. The mixing parameters and status include mixing speed, mixing duration, and start and stop times.

[0024] The present invention is further configured such that: the stirring module includes a stirring motor and a current detection module electrically connected to the distributed drive control unit, for real-time monitoring and feedback of the operating current of the stirring motor.

[0025] The present invention is further configured such that: the distributed drive control unit acquires the operating current and compares it with the normal current range;

[0026] When the operating current is consistently below the lower limit of the normal current range, it is determined that the stirring module has lost synchronization or is running idle and an alarm is triggered.

[0027] When the operating current continuously or momentarily exceeds the upper limit of the normal current range, it is determined that the stirring module is stuck or overloaded, and the stirring module is controlled to stop running and an alarm is triggered.

[0028] A control method for a heating and stirring module, applied to the control of the heating and stirring module in a high-throughput X-ray diffraction automated pretreatment device, includes the following control methods:

[0029] S1. Mode setting: The working mode is divided according to the operation of placing the sample on the heating and stirring module:

[0030] Full-process mode: Applied for pretreatment of clay samples in batches before equipment operation, setting temperature control parameters and stirring parameters according to the type of clay sample;

[0031] Interruption mode: When the full process mode has been executed, temporary samples of the same type as the previous clay sample are added one by one during equipment operation, the temporary samples are pretreated, and the stirring parameters of the corresponding placement station are set separately.

[0032] The temperature control parameters include the set temperature parameter and the heating rate; the stirring parameters include the stirring speed, the stirring duration, and the start and stop times.

[0033] S2. During machine operation, clay samples are placed in batches at the placement stations of each heating and stirring module. Then, the main controller sends the temperature control parameters and stirring parameters set in the full-process mode to the slave control module in batches. The slave control module controls the heating module to start and simultaneously heats several placement stations. After the temperature reaches the set temperature, the stirring module is started to stir at the set speed. At the same time, the placement status of the clay samples at the placement stations is judged, and the stirring module is started according to the placement status.

[0034] S3. Let stand. After the stirring operation is completed, stop the stirring module to let it stand and suspend. Then, remove the upper clear liquid and add an equal amount of distilled water or deionized water.

[0035] S4. Circulate stirring and let stand. After adding distilled water or deionized water, restart the heating module and stirring module to stir and suspend until the clay particles are stably suspended. Complete the heating and stirring operation and extract the middle layer suspension solution.

[0036] S5. Mid-term test: Place the clay sample to be tested mid-term on the placement station. The control module detects the status change of the placement detection unit at the corresponding placement station and feeds it back to the main controller. Set the interrupt mode mixing mode and parameters for the corresponding placement station and transmit them to the slave control module through the main controller. Start the mixing module of the placement station to work independently.

[0037] The present invention is further configured such that the step of setting the stirring mode for setting the interruption mode of the corresponding placement station includes:

[0038] S51, Workstation Detection: The status of the workstation is detected by an independent switch detection module;

[0039] S52. Set the stirring mode, obtain the set temperature of the heating module and the real-time temperature after the beaker is placed, set the low-frequency stirring speed or let it stand until the real-time temperature reaches the set temperature, and switch the stirring speed and stirring parameters of the full-process mode.

[0040] In summary, the present invention has the following beneficial effects:

[0041] This application achieves simultaneous parallel processing of multiple clay samples through array-distributed placement stations, synchronously heated heating modules, and independently controlled stirring modules. It automates the batch processing of clay samples, replacing manual stirring. The heating modules accelerate the precipitation and suspension of clay particles. Based on automated processing, the distributed drive control unit supports batch parameter distribution and unified management of all placement stations, avoiding the tedious process of setting parameters one by one. This greatly improves the efficiency of batch sample processing, achieving a combination of high throughput and intelligent control, and significantly enhancing pretreatment efficiency.

[0042] Each placement station is equipped with an independent switch detection module and an independently driven stirring module, enabling the system to process batches of samples in "full-process mode" and handle temporarily added single samples in "interruption mode" without interrupting the operation of other placement stations. This design meets the needs of standard processing of fixed batches of samples in scientific research or quality inspection processes, while also flexibly responding to the needs of urgent or temporary samples, improving equipment utilization and experimental flexibility. It possesses high flexibility and modular independence, adapting to complex experimental requirements.

[0043] The integrated placement detection unit incorporates pressure sensors, photoelectric sensors, and a temperature control detection unit to ensure that stirring is only initiated or permitted when the beaker is in place and the preset temperature condition is met, eliminating experimental deviations caused by human error or substandard temperature. The stirring motor is equipped with a current detection module, forming a closed loop with the distributed drive control unit. The system can diagnose stirring status (such as idling or jamming) and take timely measures such as stopping and alarming, effectively protecting the equipment and ensuring that each sample is stirred under the set load and conditions. This guarantees the consistency of sample pretreatment quality across different batches and placement stations. Through multiple detections and closed-loop control, the consistency of the experimental process and the repeatability of results are ensured.

[0044] For samples added midway through the process, the system can intelligently first use low-frequency stirring or let it stand until the temperature rises to the set value, and then switch to the standard stirring mode to ensure the consistency of processing conditions between temporary samples and batch samples. Attached Figure Description

[0045] Figure 1 This is the control flowchart for the full-process mode in this invention;

[0046] Figure 2 This is a control flowchart for the interrupt mode in this invention.

[0047] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0053] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] Example 1: A heating and stirring module for an automated pretreatment device for high-throughput X-ray diffraction, comprising:

[0055] Base;

[0056] The upper seat is installed above the base and has a placement station with an array distribution configuration;

[0057] The heating module is installed inside the upper seat and is used to simultaneously heat several placement stations;

[0058] Several mixing modules are set inside the base, corresponding to the placement positions;

[0059] The temperature control module, connected to the heating module, is used to input and set temperature control conditions or to control the start and stop of the heating module. In this embodiment, the heating module uses an electric heating tube assembly, and the upper part is covered with insulation cotton. Specifically, the electric heating tube assembly consists of several electric heating tubes arranged side by side at equal intervals. The insulation cotton fills the space excluding the placement station (the space where the beaker is placed), so that when the electric heating tube assembly conducts heat to heat the beaker and the mixture inside the beaker, it can achieve a heat preservation effect. The stirring module uses a magnetic stirring module, which, through the setting of stirring motors, magnetic holders, and magnets, in this embodiment, several stirring motors are respectively set in each placement station. Below the workstation, a magnet holder is fixedly connected to the output end of the stirring motor, and a magnet is fixedly connected to the eccentric position of the magnet holder. When the stirring motor rotates, it drives the magnet holder to rotate synchronously, causing a change in the magnetic field. The magnet, as a passive component, is placed in the beaker. The stirring motor drives the magnet holder to rotate forward or backward. The magnet holder is equipped with multiple magnets located at eccentric positions. When the magnet holder rotates, it drives the magnet in the beaker to stir synchronously, achieving the purpose of mechanically stirring the mixture in the beaker. In this embodiment, each heating and stirring module is equipped with a rectangular array of 25 placement workstations.

[0060] An independent switch detection module is installed at each placement station to detect the status of the placement station and output a detection signal corresponding to that station. Specifically, the independent switch detection module includes a placement detection unit and a temperature control detection unit. The independent placement detection unit checks the placement of the beaker by pressing, touching, sensing weight, or photoelectric blocking. The placement detection unit includes a sensor group for acquiring the placement status of the beaker within the placement station. The sensor group includes any one or more of pressure sensors, photoelectric sensors, or microswitches. The sensor group is connected to the corresponding placement station via a distributed drive control unit. For example, to avoid misjudgments caused by empty beakers, the stirring module can be connected via a combination of microswitches or photoelectric sensors and pressure sensors. The microswitches or photoelectric sensors detect the placement of the beaker, while the pressure sensors detect the weight of the placed beaker. If the beaker contains solution or other substances, the pressure signal collected by the pressure sensor should be greater than the weight of the beaker itself. This ensures that when the beaker is empty or contains only a small amount of substance (depending on the set baseline mass), the placement detection unit will not respond to the beaker placement action, thereby reducing misjudgments and unnecessary activation of the stirring module.

[0061] The distributed drive control unit is communicatively connected to the independent switch detection module and is used to receive detection signals to drive or stop the stirring module corresponding to the placement station. The placement detection unit and the temperature control detection unit are both data connected to the distributed drive control unit. The distributed drive unit is configured to independently start or stop the stirring module corresponding to the placement station in response to the detection signal issued by the placement detection unit on the placement station.

[0062] Alternatively, in response to the detection signals emitted by both the placement detection unit and the temperature control detection unit at the placement station, the stirring module corresponding to the respective placement station can be driven independently.

[0063] In this embodiment, at least two driving modes can be set. One mode is driven by placing the detection unit alone, which is suitable for tests where stirring is controlled separately. The other mode is driven by placing the detection unit in cooperation with the temperature control detection unit, which is suitable for tests where the reaction process is sensitive to temperature or where temperature has a significant impact on the reaction process.

[0064] The temperature control detection unit includes a temperature sensor installed in the placement station. The temperature sensor acquires the temperature at the corresponding placement station and outputs a temperature data signal. The temperature sensor is electrically connected to a comparator, which receives the temperature data signal and compares it with a set reference temperature. When the temperature data signal is lower than the reference temperature, it outputs a temperature control switch signal. Specifically, the temperature sensor can be a combination of resistive or thermocouple types. The resistive temperature sensor detects the temperature rise and status of the heating element, while the thermocouple or resistive temperature sensor installed in the placement station collects the actual temperature of the beaker placement area, thus forming positive feedback to adjust the start / stop of the heating element or the heating power, suitable for experimental groups with requirements on start-up temperature. In this embodiment, the comparator is a multi-stage voltage comparator composed of operational amplifiers. Specifically, in this embodiment, a two-stage voltage comparator is set: a reference signal, which can be used to start / stop the stirring control, and a threshold temperature signal, which can be used to determine the start / stop of the heating element. Furthermore, when the temperature data signal is lower than the reference temperature, the heating module operates and the control of the stirring module by the distributed drive control unit is delayed.

[0065] When the temperature data signal is lower than the reference temperature, the distributed drive control unit obtains the temperature data signal and compares it with the reference temperature to calculate the time required for the distributed drive control unit to start the stirring module. By obtaining the temperature data signal at intervals of 1-5 minutes (time is visible and the accuracy is adjustable), the temperature rise rate is obtained, and the difference between the real-time temperature and the set temperature is obtained, thereby obtaining the expected time required for the temperature rise. This allows the setting of the time required for the distributed drive control unit to start the stirring module to ensure that the temperature meets the set requirements when the stirring module is driven.

[0066] In this embodiment, the distributed drive control unit includes a main controller and a slave control module. The slave control module is set up one-to-one with several placement stations. The slave control module is connected to the independent switch detection module and the stirring module, and is used to receive signals from the main controller and the independent switch detection module to start and stop the stirring module.

[0067] The main controller communicates with several slave control modules to send out mixing parameters for controlling the mixing modules in batches and to receive and monitor the status of several mixing modules. The mixing parameters and status include mixing speed, mixing duration, and start and stop times.

[0068] The stirring module also includes a current detection module electrically connected to the distributed drive control unit for real-time monitoring and feedback of the stirring motor's operating current. Specifically, a Hall current sensor can be used to collect the operating current in the stirring motor's drive circuit in a non-contact manner. It is equipped with a signal modulation circuit, including a low-pass filter and an integrated operational amplifier, to filter out high-frequency noise and amplify the voltage signal output by the current sensor. An analog-to-digital conversion circuit modulates the signal into a digital signal, which the distributed drive control unit then obtains and compares with the normal current range.

[0069] When the operating current is consistently below the lower limit of the normal current range, it is determined that the stirring module has lost synchronization or is running idle and an alarm is triggered.

[0070] When the operating current continuously or momentarily exceeds the upper limit of the normal current range, it is determined that the stirring module is stuck or the load is too large. Then, the stirring module is controlled to stop running and an alarm is triggered. In this embodiment, the no-load current is measured to be 50-150mA, the normal current range is 200-500mA, and the overload alarm threshold range is 600-800mA.

[0071] Example 2, as follows Figure 1 and Figure 2 As shown, the control method for the heating and stirring module is applied to the control of the heating and stirring module in a high-throughput X-ray diffraction automated pretreatment device. The control method includes:

[0072] S1. Mode setting: The working mode is divided according to the operation of placing the sample on the heating and stirring module:

[0073] Full-process mode: Applied for pretreatment of clay samples in batches before equipment operation, setting temperature control parameters and stirring parameters according to the type of clay sample;

[0074] Interruption mode: When the full process mode has been executed, temporary samples of the same type as the previous clay sample are added one by one during equipment operation, the temporary samples are pretreated, and the stirring parameters of the corresponding placement station are set separately.

[0075] The temperature control parameters include the set temperature parameter and the heating rate; the stirring parameters include the stirring speed, the stirring duration, and the start and stop times.

[0076] S2. During machine operation, clay samples are placed in batches at the placement stations of each heating and stirring module. Then, the main controller sends the temperature control parameters and stirring parameters set in the full-process mode to the slave control module in batches. The slave control module controls the heating module to start and simultaneously heats several placement stations. After the temperature reaches the set temperature, the stirring module is started to stir at the set speed. At the same time, the placement status of the clay samples at the placement stations is judged, and the stirring module is started according to the placement status.

[0077] S3. Let stand. After the stirring operation is completed, stop the stirring module to let it stand and suspend. Then, remove the upper clear liquid and add an equal amount of distilled water or deionized water.

[0078] S4. Circulate stirring and let stand. After adding distilled water or deionized water, restart the heating module and stirring module to stir and suspend until the clay particles are stably suspended. Complete the heating and stirring operation and extract the middle layer suspension solution.

[0079] S5. Mid-term test: Place the clay sample to be tested mid-term on the placement station. The control module detects the status change of the placement detection unit at the corresponding placement station and feeds it back to the main controller. Set the interrupt mode mixing mode and parameters for the corresponding placement station and transmit them to the slave control module through the main controller. Start the mixing module of the placement station to work independently.

[0080] The steps for setting the stirring mode with an interruption mode for the corresponding placement station include:

[0081] S51, Workstation Detection: The status of the workstation is detected by an independent switch detection module;

[0082] S52. Set the stirring mode, obtain the set temperature of the heating module and the real-time temperature after the beaker is placed, set the low-frequency stirring speed or let it stand until the real-time temperature reaches the set temperature, and switch the stirring speed and stirring parameters of the full-process mode.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A heating and stirring module for an automated pretreatment device for high-throughput X-ray diffraction, characterized in that: include: Base; The upper seat is installed above the base and has a placement station with an array distribution configuration; The heating module is installed inside the upper seat and is used to simultaneously heat several placement stations; Several mixing modules are set inside the base, corresponding to the placement positions; The temperature control module is connected to the heating module and is used to input and set temperature control conditions or to control the start and stop of the heating module. An independent switch detection module is set on each placement station to detect the status of the placement station and output a detection signal corresponding to a specific placement station. The distributed drive control unit is connected in communication with the independent switch detection module to receive detection signals to drive or stop the stirring module at the corresponding placement position; The independent switch detection module includes a placement detection unit and a temperature control detection unit. Both the placement detection unit and the temperature control detection unit are data-connected to the distributed drive control unit. The distributed drive control unit is configured to: respond to the detection signal issued by the placement detection unit at the placement station, and independently start or stop the stirring module corresponding to the corresponding placement station. Alternatively, it can respond to the detection signals emitted by both the placement detection unit and the temperature control detection unit at the placement station, and independently drive the stirring module corresponding to the corresponding placement station. The distributed drive control unit includes a main controller and a slave control module. The slave control module is set up one-to-one with several placement stations. The slave control module is connected to an independent switch detection module and a stirring module, and is used to receive signals from the main controller and the independent switch detection module to start and stop the stirring module. The main controller is communicatively connected to several slave control modules, and is used to send out batch mixing parameters for controlling the mixing modules and receive and monitor the status of several mixing modules. The mixing parameters and status include mixing speed, mixing duration and start / stop time points. The stirring module includes a stirring motor and a current detection module electrically connected to the distributed drive control unit, which is used to monitor and provide feedback on the operating current of the stirring motor in real time. The distributed drive control unit obtains the operating current and compares it with the normal current range: When the operating current is consistently below the lower limit of the normal current range, it is determined that the stirring module has lost synchronization or is running idle and an alarm is triggered. When the operating current continuously or momentarily exceeds the upper limit of the normal current range, it is determined that the stirring module is stuck or overloaded, and the stirring module is controlled to stop running and an alarm is triggered.

2. The heating and stirring module of the automated pretreatment device for high-throughput X-ray diffraction according to claim 1, characterized in that: The placement detection unit includes a sensor group for acquiring the placement status of beakers in the placement station. The sensor group includes any one of a pressure sensor, a photoelectric sensor, or a micro switch. The sensor group is connected to the stirring module of the corresponding placement station through a distributed drive control unit.

3. The heating and stirring module of the automated pretreatment device for high-throughput X-ray diffraction according to claim 2, characterized in that: The temperature control detection unit includes a temperature sensor installed in the placement station. The temperature sensor is used to acquire the temperature of the corresponding placement station and output a temperature data signal. The temperature sensor is electrically connected to a comparator. The comparator is used to receive the temperature data signal and compare it with a set reference temperature. When the temperature data signal is less than the reference temperature, it outputs a temperature control switch signal. Specifically, when the temperature data signal is lower than the reference temperature, the heating module operates and the distributed drive control unit delays the control of the stirring module.

4. The heating and stirring module of the high-throughput X-ray diffraction automated pretreatment device according to claim 3, characterized in that: When the temperature data signal is lower than the reference temperature, the distributed drive control unit obtains the temperature data signal and compares it with the reference temperature to calculate the time for the distributed drive control unit to start the stirring module.

5. A control method for a heating and stirring module, applied to the heating and stirring module of the high-throughput X-ray diffraction automated pretreatment apparatus as described in any one of claims 1-4, characterized in that: Its control methods include: S1. Mode setting: The working mode is divided according to the operation of placing the sample on the heating and stirring module: Full-process mode: Applied for pretreatment of clay samples in batches before equipment operation, setting temperature control parameters and stirring parameters according to the type of clay sample; Interruption mode: When the full process mode has been executed, temporary samples of the same type as the previous clay sample are added one by one during equipment operation, the temporary samples are pretreated, and the stirring parameters of the corresponding placement station are set separately. The temperature control parameters include the set temperature parameter and the heating rate; the stirring parameters include the stirring speed, the stirring duration, and the start and stop times. S2. During machine operation, clay samples are placed in batches at the placement stations of each heating and stirring module. Then, the main controller sends the temperature control parameters and stirring parameters set in the full-process mode to the slave control module in batches. The slave control module controls the heating module to start and simultaneously heats several placement stations. After the temperature reaches the set temperature, the stirring module is started to stir at the set speed. At the same time, the placement status of the clay samples at the placement stations is judged, and the stirring module is started according to the placement status. S3. Let stand. After the stirring operation is completed, stop the stirring module to let it stand and suspend. Then, remove the upper clear liquid and add an equal amount of distilled water or deionized water. S4. Circulate stirring and let stand. After adding distilled water or deionized water, restart the heating module and stirring module to stir and suspend until the clay particles are stably suspended. Complete the heating and stirring operation and extract the middle layer suspension solution. S5. Mid-term test: Place the clay sample to be tested mid-term on the placement station. The control module detects the status change of the placement detection unit at the corresponding placement station and feeds it back to the main controller. Set the interrupt mode mixing mode and parameters for the corresponding placement station and transmit them to the slave control module through the main controller. Start the mixing module of the placement station to work independently.

6. The control method for the heating and stirring module according to claim 5, characterized in that: The steps for setting the stirring mode with the corresponding placement station interruption mode include: S51, Workstation Detection: The status of the workstation is detected by an independent switch detection module; S52. Set the stirring mode, obtain the set temperature of the heating module and the real-time temperature after the beaker is placed, set the low-frequency stirring speed or let it stand until the real-time temperature reaches the set temperature, and switch the stirring speed and stirring parameters of the full-process mode.

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